package com.umgsai.thread.thread28;

public class ThreadA extends Thread {
	private Object lock;
	public ThreadA(Object lock) {
		super();
		this.lock = lock;
	}
	@Override
	public void run() {
		try {
			synchronized (lock) {
				if (MyList.size() != 5) {
					System.out.println("wait begin " + System.currentTimeMillis());
					lock.wait();
					System.out.println("wait end " + System.currentTimeMillis());
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
